KR20030009406A - Severing machine for elongated rolls of weblike material having multiple cutting blades - Google Patents

Abstract

The cutter of the present invention includes a series of cutting blades 23 rotating around each axis; A feeder 111 having at least one peripheral pedestal 115A, 115B, 115C for the product L, which rotates about an axis 111A approximately parallel to the axis of the disk-shaped blade; And a flexible member 201 passing around at least a portion of the periphery of the rotating feeder to hold the product on each pedestal during cutting.

Description

SEVERING MACHINE FOR ELONGATED ROLLS OF WEBLIKE MATERIAL HAVING MULTIPLE CUTTING BLADES}

In the paper products processing industry, in particular, during the manufacture of a product made of tissue paper, the web-like material is usually wound with rolls or logs of the same diameter and major axis dimension as the diameter of the finished article. These rolls and logs are then cut by a cutter into a plurality of small rolls of the same axial dimension as the final dimensions of the article for consumption.

Typically, to cut a roll, a cutter is used that has an assembly that rotates or vibrates about an axis and is equipped with one or more disk shaped blades that rotate about their respective axes. The movement of the assembly causes the disk-shaped blades mounted in the assembly to circulate cyclically through the material forming the rolls and travel under the rotating assembly. In each cycle of the rotating assembly, at least one small roll is cut from one of the rolls being fed. Usually, a plurality of rolls advance in parallel and are simultaneously cut by successive passages of the same disk-shaped blades carried by rotating or vibrating assemblies. If the assembly carries two blades, two in each cycle are cut.

Examples of cutters of this type are disclosed in US Pat. No. 5,522,292.

According to another known technique, each roll is cut into the final number of small rolls in one pass by a series of parallel cutting edges. Cutting machines of this type are disclosed in US Pat. No. 4,329,985. In this machine, a roll to be cut is inserted into a cradle and travels linearly under a plurality of parallel straight blades inclined with respect to the roll direction. The blades all penetrate together gradually into the material of the roll and are cut into a series of small rolls during one pass.

Another example of a cutter capable of simultaneously cutting each roll into a plurality of small rolls is disclosed in IT-B-1 103 635. In this known machine, the rotary assembly is provided on a separate base for each set of rotary blades. The shape of a rotary blade is made to penetrate the cutting edge gradually with the thickness of a roll.

Many of these cutters are not sufficient to meet current high quality requirements. Thus, at present, a system for cutting the rolls in a continuous operation of "slicing" (ie slicing) the rolls is preferred.

In addition, the multiple cutters known today are complex and large, and do not meet current safety standards.

The present invention is directed to cutting long rolls or logs into a plurality of small rolls for the purpose of final consumption, in particular packs of products sandwiched between web-like materials such as paper napkins or other papers. And other cutters for cutting long length products.

This type of machine is commonly used in the paper product processing industry for manufacturing other paper products, such as toilet paper rolls and kitchen towel rolls.

1 is a side view of a cutter

2A-2E show a continuous phase for ejecting a cut small roll into an unloading channel.

It is an object of the present invention to provide a cutter of this type which is effective and structurally simple with a plurality of blades, in a new system for holding a product to be cut during cutting.

Another object of the present invention is an improved cutter with multiple blades of simple and compact structure that simultaneously cuts a series of small rolls from a roll or log of wound web-shaped material or cuts another article from a long product. To provide.

These and other objects and advantages will be apparent to those skilled in the art from the following detailed description, and substantially:

A series of cutting blades rotating about each axis of rotation;

A rotary feeder rotating about an axis approximately parallel to the axis of the disk-shaped blade, having at least one peripheral pedestal for the product, for removing the product from the removal area and transporting it to the cutting blade; And

It is achieved by a cutter for long articles provided with a combination of flexible members passing around at least a portion of the periphery of the rotary feeder to hold the article on the at least one pedestal during cutting.

Preferably, the rotary feeder is provided with one or more pedestals so as to obtain faster operation. According to a preferred embodiment of the present invention, the cutting blade is not strictly necessary but has a disk-shaped blade, that is, a circular cutting blade. They may, for example, have a cutting edge in the form of part of the helix.

According to a possible embodiment of the invention, the flexible member comprises at least one continuous passage around at least two return pulleys and along a cross section between the two pulleys, around the periphery of the rotary feeder. With a belt, the rotary feeder has a generally cylindrical side, and along this side opens the at least one pedestal for the product to be cut.

Further preferred embodiments of the cutter according to the invention are indicated in the appended dependent claims.

EMBODIMENT OF THE INVENTION Hereinafter, the preferred embodiment example of this invention is described in detail.

The cutting machine of the present invention is a series of discs that rotate by a motor shaft 35A about a common axis driven by a belt 31 (or around each axis that is not aligned and is substantially parallel to each other). The cutting unit 13 with the blade 23 is provided (FIG. 1). 1 is a side view showing only one of the disk-shaped blades 23 being rotated (other blades are hidden from view). In fact, along the axis of rotation extending orthogonal to the plane of the drawing, the rotating disc-shaped cutting edges are arranged in a number sufficient to divide each roll into a desired number of small rolls and cut out the head and tail of the roll.

The roll or log L from the storage unit (not shown) or another supply system is received by the rotary feeder 111 rotating around the horizontal axis 111A in a continuous or intermittent operation. This rotary feeder 111 has a cylindrical body, and forms three bases 115A, 115B, 115C which can be employed in the diameter of the roll along the body, if necessary-by insertion or the like. Each seat 115A, 115B, 115C is a roll or log L from a rotational or vibration distributor 153 which receives a roll or log L from an automatic activation device 151 connected to a storage unit. Receive. The feeder also has an annular groove for passage of the blade, as can be seen in the region indicated in the cross section.

In the rotary feeder 111, the side facing the cutting unit 13 is surrounded by an appropriate arc shape by a plurality of belts or equivalent continuous flexible members indicated by 201. Only one of the belts is shown in FIG. 1, but the other is arranged after the one shown in FIG. 1 in the same track at a suitable distance so that the cutting blade does not interfere.

The belt 201 passes through wheels or pulleys 203, 205, 207, and 209 having a fixed shaft. Therefore, the holding member formed by the belt 201 is fixed to the rotary feeder 111 in the sense that it moves along the feed path defined by the pulley and the rotating assembly but is held in the same spiral position.

As is evident from the figure, the belt 201 is provided with a rotary feeder (1) to the cutting unit 113 for the entire period of time necessary to cut the roll L into the small roll R and until the unloading position is reached. The holding system which holds each roll L supplied by 111 is comprised.

In the example shown in the figure, the flexible member 211 is arrange | positioned under the rotation feeder 111, This flexible member 211 passed through the wheel 215, 216, and 217 around. It has a plurality of shake tables 213 movable along a closed path defined by the flexible member 211. Under the system of the movable shake table 213, three unloading channels 16A, 16B, and 16C, each of which is equipped with respective outer conveyor belts, are disposed.

According to this structure, as is apparent from the following, the small rolls conveyed by the rotary feeder 111 are discharged to the shake table 213 after cutting, and therefrom three unloading channels 16A, 16B, ( 16C), the conveyor belt in the shake table can move at a speed 1/3 of the speed required to remove the entire small roll when the small roll is unloaded into a common channel.

2A to 2E show the procedure for discharging the roll to the unloading channel from the rotational feeder in the possible form of this embodiment example. Comparing the procedure of the positions shown in FIG. 2, as is apparent, the rotary feeder 111 unloads various cut series of small rolls R to various shake tables 213. By this shake table, it advances stepwise so that an empty shake table may exist under each seat 115A, 115B, 115C according to each case. Receiving the shake table 213, i.e., the cut small roll R, is aligned with the unloading channels 16A, 16B, and 16C, so that the lower strand is lower from the upper strand of the flexible member 211. Is transferred step by step. Once the three shake tables 213 are positioned above the three unloading channels 16A, 16B, and 16C, the three series of small rolls R are unloaded from the channels 16A, 16B, Simultaneously vibrates for release to 16C, at which time each conveyor belt removes the small roll in a direction orthogonal to the plane of the drawing.

Since the moving phases of the shake table 213, the flexible member 211, and the rotation feeder 111 can also be different, it can be understood that the distance between the shake table 213 on the flexible member 211 can also be changed suitably.

In the illustrated example, when the rotary feeder 111 is rotated by the motor 225, the movement may or may not be formed so as to interact with the teeth of the corresponding periphery of the feeder 111. It is transmitted to the belt 201 which is not necessary. This movement is supplied by the second motor 227 to the wheel 215 and then to the flexible member 211. The two motors 225 and 227 are synchronized with each other, so that, for example, correct feeding of the roll is obtained by electronic control. For example, the possibility of mechanical connection by intermittent mechanism or mixed coupling using planetary gears and correction motors is not prohibited.

While the drawings of the present invention are merely shown as being merely provided for practical explanation of the present invention, the embodiments of the present invention can be modified in various forms and configurations without departing from the scope of the invention. to be.

As described above, according to the present invention, it is possible to provide an effective and structurally simple cutter having a plurality of blades as a new system for holding a product to be cut during cutting.

In addition, according to the present invention, an improved cutter having a plurality of blades of a simple and compact structure for simultaneously cutting a series of small rolls from a roll or log of wound web-shaped material or cutting another article from a long product It is possible to provide.

Machines of this type are also commonly used in the paper product processing industry for manufacturing other paper products, such as toilet paper rolls and kitchen towel rolls.

Claims (7)

In a cutter for cutting a long product at the same time to form a series of articles, A series of cutting blades rotating about each axis of rotation; A rotary feeder rotating about an axis approximately parallel to the axis of the disk-shaped blade, having at least one peripheral pedestal for the product, for removing the product from the removal area and transporting it to the cutting blade; And A cutter comprising a combination of flexible members passing through a circumference of at least a portion of the periphery of the rotary feeder in order to hold the product on the at least one pedestal during cutting. A cutter as claimed in claim 1, wherein said rotary feeder has a plurality of pedestals for said product. The cutter according to claim 1 or 2, wherein the cutting blade is a disk-shaped blade. The flexible member according to claim 1, wherein the flexible member passes around at least one return pulley and around the periphery of the rotary feeder along a cross section between the two pulleys. And at least one continuous belt, said rotary feeder having a generally cylindrical side, and opening said at least one pedestal for the product to be cut along this side. 5. The method according to any one of claims 1 to 4, wherein at least one unloading channel for the cut small article is disposed downstream of the flexible member with respect to the rotational direction of the rotary feeder. cutter. 6. The cutter of claim 5, wherein the loading region of the product to be cut is disposed upstream of the flexible member with respect to the rotational direction of the rotary feeder. The cutter according to any one of claims 1 to 6, wherein the rotation axis of the rotary feeder is in a horizontal direction.